CN104035167A - Connector cable and method for manufacturing connectored cable - Google Patents

Connector cable and method for manufacturing connectored cable Download PDF

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Publication number
CN104035167A
CN104035167A CN201410240782.6A CN201410240782A CN104035167A CN 104035167 A CN104035167 A CN 104035167A CN 201410240782 A CN201410240782 A CN 201410240782A CN 104035167 A CN104035167 A CN 104035167A
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CN
China
Prior art keywords
optical fiber
cable
connector
mentioned
bend
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Granted
Application number
CN201410240782.6A
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Chinese (zh)
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CN104035167B (en
Inventor
森正男
畔上幸士
阿部真也
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Fujikura Ltd
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Fujikura Ltd
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Publication date
Priority claimed from JP2011213144A external-priority patent/JP5250679B2/en
Priority claimed from JP2011219450A external-priority patent/JP5250680B2/en
Priority claimed from JP2011219451A external-priority patent/JP5250681B2/en
Application filed by Fujikura Ltd filed Critical Fujikura Ltd
Publication of CN104035167A publication Critical patent/CN104035167A/en
Application granted granted Critical
Publication of CN104035167B publication Critical patent/CN104035167B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4256—Details of housings
    • G02B6/4257—Details of housings having a supporting carrier or a mounting substrate or a mounting plate
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3826—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres characterised by form or shape
    • G02B6/3827—Wrap-back connectors, i.e. containing a fibre having an U shape
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3885—Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4202—Packages, e.g. shape, construction, internal or external details for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4274—Electrical aspects
    • G02B6/428—Electrical aspects containing printed circuit boards [PCB]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4274—Electrical aspects
    • G02B6/4284—Electrical aspects of optical modules with disconnectable electrical connectors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4295—Coupling light guides with opto-electronic elements coupling with semiconductor devices activated by light through the light guide, e.g. thyristors, phototransistors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3823—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres containing surplus lengths, internal fibre loops
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4285—Optical modules characterised by a connectorised pigtail
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4415—Cables for special applications
    • G02B6/4416—Heterogeneous cables
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49174—Assembling terminal to elongated conductor

Abstract

A connector cable including a cable having an optical fiber for transmitting an optical signal; and a connector that accommodates a substrate on which a photoelectric conversion portion that is optically coupled to an end face of the optical fiber is installed. The cable with the connector is characterized in that the orientation of the optical fiber which stretches out from the connector is in a front-rear direction, the cable is at a rear side and the opposite side is a front side viewed from the connector side, and the photoelectric conversion portion is an upper side and the opposite side is a lower side viewed from the substrate side; the optical fiber is wired so that at least three bent portions are formed, the orientation of the optical fiber in a front-rear direction being changed, the optical fiber being bent into a U shape at each of the bent portions, and so that one of two bent portions on a front side is located on a down side of the substrate and the other bent portion on the front side is located on an up side of the substrate.

Description

The manufacture method of the cable of Belt connector and the cable of Belt connector
The application is that national applications number is 201280006915.2, and entering the date in China national stage is on 07 29th, 2013, and denomination of invention is the divisional application of the application for a patent for invention of " manufacture method of the cable of Belt connector and the cable of Belt connector ".
Technical field
The present invention relates to the manufacture method of the cable of Belt connector and the cable of Belt connector.
Background technology
For example can use following mode to carry out the light transmission of equipment room: the photoelectric conversion part that electric signal and light signal are changed to be arranged to each equipment, optical cable is connected in to this photoelectric conversion part via optical connector, carry out the transmitting-receiving of light signal by this optical cable.
In which, if exist optical connector to adhere to dirt, foreign matter and cause the problem of Signal Degrade.In addition, in which, in equipment, need optical fiber processing portion, photoelectric conversion part.So, proposed photoelectric conversion part to be arranged at the cable (patent documentation 1) of the Belt connector of connector side.
Patent documentation 1: Japanese kokai publication hei 5-226027 communique
In recent years, along with the miniaturization of equipment and the increase of transinformation, need to be in small-sized connector receiving optical fiber.On the other hand, in order to suppress the damage of optical fiber, optically-coupled portion in the time that cable is applied to tension force, need in connector, fully guarantee excess fiber length.
But, even if fully guarantee excess fiber length in connector, if optical fiber easily becomes mobile state in connector inside, also cannot suppress the damage of optically-coupled portion.
Summary of the invention
The object of the invention is to be difficult in connector inside with optical fiber mobile mode and carry out remaining long process, and suppress the damage of optically-coupled portion.
Be the cable of Belt connector for the first main invention that realizes above-mentioned purpose, it possesses: cable, and it has the optical fiber for transmitting optical signal, and connector, it holds substrate, aforesaid substrate is equipped with the photoelectric conversion part with the optical coupling of end face of above-mentioned optical fiber, the cable of above-mentioned Belt connector is characterised in that, to be made as fore-and-aft direction from the direction of the extended above-mentioned cable of above-mentioned connector, observe from above-mentioned connector side, after above-mentioned cable-side is, opposition side is front, and observe from aforesaid substrate side, above-mentioned photoelectric conversion part side is upper, opposition side is lower time, at least be formed with in the inside of above-mentioned connector three change above-mentioned optical fiber above-mentioned fore-and-aft direction towards and make above-mentioned fibre-optical bending become the bend of U font, and by above-mentioned optical fiber with the orientation in two bends of front side in the downside of aforesaid substrate, the mode that the opposing party is positioned at the upside of aforesaid substrate connects up.
Carry out other features clearly of the present invention by the record of instructions described later and accompanying drawing.
According to the present invention, carry out remaining long process so that optical fiber is difficult to mobile mode in connector inside, and can suppress the damage of optically-coupled portion.
Brief description of the drawings
Fig. 1 is the overall perspective view of the cable 1 of the Belt connector of present embodiment.
Fig. 2 is vertical view and the side view of the cable 1 of the Belt connector of present embodiment.
Fig. 3 is the cut-open view of the composite cable 2 that uses of present embodiment.
Fig. 4 is the functional block diagram of the cable 1 of the Belt connector of present embodiment.
Fig. 5 is the exploded perspective view of camera side-connector 10.
Fig. 6 is the stereographic map of mother substrate 20.
Fig. 7 is the stereographic map of the periphery of the submounts 40 observed from oblique upper.
Fig. 8 A is the key diagram that makes the optically-coupled portion 43 of optical coupling between illuminating part 41 and optical fiber 3.Fig. 8 B is the key diagram of the bonding station of the end of optical fiber 3.
Fig. 9 is the stereographic map of the terminal part 12 of the camera side-connector 10 observed from oblique upper.
Figure 10 is the figure shedding after the protective cover 51 of Fig. 9.
Figure 11 be from oblique beneath to the stereographic map of terminal part 12 of camera side-connector 10.
Figure 12 A is the side view of the terminal part 12 observed from left side.Figure 12 B is the side view of the terminal part 12 observed from right side.
Figure 13 is the key diagram of the terminal part 3I of the optical fiber 3 of present embodiment and comparative example.
Figure 14 is the exploded perspective view of capture card side-connector 110.
Figure 15 is the stereographic map of the periphery of the submounts 140 of the capture card side-connector 110 observed from oblique upper.
Figure 16 is the stereographic map of the terminal part 112 of the capture card side-connector 110 observed from oblique upper.
Figure 17 is the figure shedding after the protective cover 151 of Figure 16.
Figure 18 be from oblique beneath to the stereographic map of terminal part 112 of capture card side-connector 110.
Figure 19 is the key diagram of the manufacture method of the cable 1 of Belt connector.
Figure 20 be from oblique beneath to the stereographic map of terminal part 12 of camera side-connector 10 of the first variation.
Figure 21 is the stereographic map of the terminal part 12 of the camera side-connector 10 of the second variation of observing from oblique upper.
Figure 22 is the figure of the terminal part 112 of the capture card side-connector 110 of the 3rd variation observed from oblique upper.
Figure 23 is the stereographic map of the periphery of the submounts 40 of the camera side-connector 10 of the 4th variation observed from oblique upper.
Figure 24 is the stereographic map of the periphery of the submounts 40 of the camera side-connector 10 of the 6th variation observed from tilted direction.
Figure 25 is the stereographic map of the periphery of the submounts 40 of the camera side-connector 10 of the 7th variation observed from tilted direction.
Figure 26 is that to make bend be the reference diagram of the remaining long process in the situation of.
Embodiment
According to the record of instructions described later and accompanying drawing, at least clear and definite following item.
(1)
The cable of specifying a kind of Belt connector, it possesses: cable, it has the optical fiber for transmitting optical signal, and connector, it holds substrate, aforesaid substrate is equipped with the photoelectric conversion part with the optical coupling of end face of above-mentioned optical fiber, the cable of above-mentioned Belt connector is characterised in that, described optical fiber is routed to: will be fore-and-aft direction from the direction setting of the extended above-mentioned cable of above-mentioned connector, observe above-mentioned cable-side is from above-mentioned connector side, opposition side is front, and observe above-mentioned photoelectric conversion part side is from aforesaid substrate side, opposition side is lower time, in the inside of above-mentioned connector, at least be formed with three above-mentioned fore-and-aft directions that change above-mentioned optical fiber towards so that the curved bend by becoming U font of above-mentioned optical fiber, and the orientation in two bends of front side is in the downside of aforesaid substrate, the opposing party is positioned at the upside of aforesaid substrate.
According to the cable of such Belt connector, can carry out remaining long process so that optical fiber is difficult to mobile mode in connector inside, and can suppress the damage of optically-coupled portion.
Preferably be formed with recess at the edge of aforesaid substrate, through the gap between inner face and the above-mentioned recess of above-mentioned connector, make the downside of aforesaid substrate and the wiring of upside contact by above-mentioned optical fiber.Thus, can realize the miniaturization of connector.
Preferably at the submounts different from aforesaid substrate, above-mentioned photoelectric conversion part is installed, is electrically connected with above-mentioned submounts by aforesaid substrate, above-mentioned photoelectric conversion part is equipped on to aforesaid substrate.Thus, become the formation of easily carrying out the wiring of optical fiber.
Preferred above-mentioned optical fiber is routed to and is clipped between aforesaid substrate and above-mentioned submounts.Thus, can the movement of limit fibre in connector.
Preferably be formed on the crooked position of rear side in the upside of aforesaid substrate with respect to two bends of above-mentioned front side, the part between two above-mentioned bends of the upside of aforesaid substrate is clipped between aforesaid substrate and above-mentioned submounts.Thus, the end of optical fiber is difficult to mobile, can suppress the damage of optically-coupled portion.
Above-mentioned end face and the above-mentioned photoelectric conversion part of preferred above-mentioned optical fiber are coupled in the following manner: above-mentioned optical fiber is bending between the above-mentioned bend of the upside at aforesaid substrate and the above-mentioned end face of above-mentioned optical fiber, and above-mentioned optical fiber and above-mentioned fore-and-aft direction are acute angle.Thus, can realize the miniaturization of connector.
Preferably aforesaid substrate has the recess being formed obliquely with respect to above-mentioned fore-and-aft direction, and above-mentioned end face and the above-mentioned photoelectric conversion part of above-mentioned optical fiber are coupled in the following manner: above-mentioned optical fiber configures along above-mentioned recess, and above-mentioned optical fiber and above-mentioned fore-and-aft direction are acute angle.Thus, can form the hands-off formation of optical fiber and substrate.
A part for the clad of preferred above-mentioned optical fiber, between above-mentioned recess, in above-mentioned recess, is engaged between the above-mentioned clad of above-mentioned optical fiber and aforesaid substrate.Thus, the joint of optical fiber becomes easy.
Preferably at the submounts different from aforesaid substrate, above-mentioned photoelectric conversion part is installed, be electrically connected with above-mentioned submounts by aforesaid substrate, above-mentioned photoelectric conversion part is equipped on to aforesaid substrate, described optical fiber is routed to and is clipped between aforesaid substrate and above-mentioned submounts, above-mentioned optical fiber than be clipped in bending direction near the above-mentioned bend of the above-mentioned end face side of above-mentioned optical fiber of part between aforesaid substrate and above-mentioned submounts, and the bending direction of above-mentioned optical fiber between this bend and the end face of above-mentioned optical fiber be identical direction.Thus, become the extremely difficult mobile formation in end of optical fiber.
Preferred above-mentioned cable also possesses signal wire, aforesaid substrate possesses the through hole for the end of above-mentioned signal wire is connected in through hole mode, in the inside of above-mentioned connector, any above-mentioned bend is all positioned in through hole mode and is connected on the clad of above-mentioned signal wire of aforesaid substrate.Thus, can suppress the damage of optical fiber.
Preferably aforesaid substrate possesses and is positioned at the backside via of above-mentioned cable-side and is formed at the front side through hole near front side than above-mentioned backside via, and the above-mentioned end of above-mentioned signal wire is inserted into the direction of above-mentioned backside via and the above-mentioned end of above-mentioned signal wire and is inserted into the opposite direction of above-mentioned front side through hole.Thus, can make signal wire be scattered in the both sides of substrate.
Preferably any above-mentioned bend is all positioned in through hole mode and is connected on the clad of above-mentioned signal wire of above-mentioned backside via.Although need to make to be connected in through hole mode the signal wire bending of front side through hole, the signal wire that is connected in backside via in through hole mode can be not bending, so signal wire and bend can be connected up compactly.
Preferably at the submounts different from aforesaid substrate, above-mentioned photoelectric conversion part is installed, be electrically connected with above-mentioned submounts by aforesaid substrate, above-mentioned photoelectric conversion part is equipped on to aforesaid substrate, the both sides of the above-mentioned bend on the clad that is positioned at above-mentioned signal wire, above-mentioned optical fiber is routed to and is clipped between aforesaid substrate and above-mentioned submounts.Thus, can carry out remaining long process so that optical fiber is difficult to mobile mode in connector inside, and suppress the damage of optically-coupled portion.
Specify a kind of manufacture method of cable of Belt connector, the cable of above-mentioned Belt connector possesses: cable, and it has the optical fiber for transmitting optical signal; And connector, it holds substrate, and aforesaid substrate is equipped with the photoelectric conversion part with the optical coupling of end face of above-mentioned optical fiber, and the manufacture method of the cable of above-mentioned Belt connector is characterised in that to have: the operation of preparing above-mentioned cable; By the operation of the above-mentioned end face of above-mentioned optical fiber and the optical coupling of above-mentioned photoelectric conversion part; And the described optical fiber that connects up, to make by from the direction setting of the extended above-mentioned cable of above-mentioned connector as fore-and-aft direction, from above-mentioned connector side observe above-mentioned cable-side be, opposition side is front, and from aforesaid substrate side observe above-mentioned photoelectric conversion part side be, opposition side is lower time, at least form three above-mentioned fore-and-aft directions that change above-mentioned optical fiber towards so that above-mentioned fibre-optical bending becomes the bend of U font, and an orientation in two bends of front side is in the operation of the downside of aforesaid substrate, upside that the opposing party is positioned at aforesaid substrate.
According to such manufacture method, can manufacture the cable of the Belt connector of the very difficult damage of optically-coupled portion.
(2)
But, in recent years, along with the miniaturization of equipment and the increase of transinformation, optical fiber need to be contained in small-sized connector.On the other hand, in order to suppress the damage of optical fiber, optically-coupled portion in the time that cable is applied to tension force, need in connector, fully guarantee excess fiber length.So the object of the second invention is, fully guarantees excess fiber length, and realize the miniaturization of connector in connector.
Be a kind of cable of Belt connector for the second main invention that realizes above-mentioned purpose, it possesses: cable, and it has optical fiber, and connector, it holds the photoelectric conversion part with the optical coupling of end face of above-mentioned optical fiber, the cable of this Belt connector is characterised in that, above-mentioned end face and the above-mentioned photoelectric conversion part of above-mentioned optical fiber are coupled in the following manner: when being fore-and-aft direction from the direction setting of the extended above-mentioned cable of above-mentioned connector, in the inside of above-mentioned connector, form change above-mentioned optical fiber above-mentioned fore-and-aft direction towards so that above-mentioned fibre-optical bending is the bend of U font, and above-mentioned optical fiber is bending between the above-mentioned end face of above-mentioned bend and above-mentioned optical fiber, above-mentioned optical fiber and above-mentioned fore-and-aft direction are acute angle.According to the cable of such Belt connector, can in connector, fully guarantee excess fiber length and realize the miniaturization of connector.
Preferably the substrate that above-mentioned photoelectric conversion part is installed is contained in to above-mentioned connector, aforesaid substrate has the recess being formed obliquely with respect to above-mentioned fore-and-aft direction, above-mentioned end face and the above-mentioned photoelectric conversion part of above-mentioned optical fiber are coupled in the following manner: above-mentioned optical fiber configures along above-mentioned recess, and above-mentioned optical fiber and above-mentioned fore-and-aft direction are acute angle.Thus, can form the hands-off formation of optical fiber and substrate.
A part for the clad of preferred above-mentioned optical fiber, between above-mentioned recess, at above-mentioned recess, is engaged between the above-mentioned clad of above-mentioned optical fiber and aforesaid substrate.Thus, the joint of optical fiber becomes easy.
Preferably will the submounts of above-mentioned photoelectric conversion part be installed and carry above-mentioned submounts and the mother substrate that is electrically connected with above-mentioned submounts is contained in above-mentioned connector.Thus, the wiring of optical fiber becomes easy.
Preferred above-mentioned optical fiber is routed to and is clipped between above-mentioned mother substrate and above-mentioned submounts.Thus, can the movement of limit fibre in connector.
Preferred above-mentioned crooked position is in than being clipped in part between above-mentioned mother substrate and the above-mentioned submounts above-mentioned end face side near above-mentioned optical fiber, and above-mentioned optical fiber is identical direction at the bending direction of above-mentioned bend, with the bending direction of above-mentioned optical fiber between above-mentioned bend and the end face of above-mentioned optical fiber.Thus, become the extremely difficult mobile formation in end of optical fiber.
Preferred described optical fiber is routed to: observe from above-mentioned connector side above-mentioned cable-side be, opposition side is front, from above-mentioned mother substrate side observe above-mentioned submounts side be, opposition side is made as lower time, in the inside of above-mentioned connector, at least be formed with three above-mentioned fore-and-aft directions that change above-mentioned optical fiber towards so that above-mentioned fibre-optical bending becomes the bend of U font, and an orientation in two bends of front side is in the downside of above-mentioned mother substrate, the upside that the opposing party is positioned at above-mentioned mother substrate.Thus, can be difficult to optical fiber mobile mode in connector inside and carry out remaining long process, and suppress the damage of optically-coupled portion.
Preferred above-mentioned cable also possesses signal wire, above-mentioned mother substrate possesses the through hole for the end of above-mentioned signal wire is connected in through hole mode, observe from above-mentioned connector side above-mentioned cable-side be, opposition side is while being front, in the inside of above-mentioned connector, be formed with other bend that is rear side bend near rear side than above-mentioned bend, above-mentioned rear side crooked position is in being connected in through hole mode on the clad of above-mentioned signal wire of aforesaid substrate.Thus, can suppress the damage of optical fiber.
Specify a kind of manufacture method of cable of Belt connector, the cable of above-mentioned Belt connector possesses: cable, and it has optical fiber; And connector, it holds the photoelectric conversion part with the optical coupling of end face of above-mentioned optical fiber, and the manufacture method of the cable of this Belt connector is characterised in that to have: the operation of preparing above-mentioned cable; By the operation of the above-mentioned end face of above-mentioned optical fiber and the optical coupling of above-mentioned photoelectric conversion part; And the above-mentioned optical fiber that connects up, to make by the direction setting from the extended above-mentioned cable of above-mentioned connector during as fore-and-aft direction, form change above-mentioned optical fiber above-mentioned fore-and-aft direction towards so that above-mentioned fibre-optical bending becomes the bend of U font, and make above-mentioned optical fiber bending between the above-mentioned end face of above-mentioned bend and above-mentioned optical fiber, so that above-mentioned optical fiber is the operation of acute angle at the above-mentioned end face of above-mentioned optical fiber and the coupling part of above-mentioned photoelectric conversion part and above-mentioned fore-and-aft direction.
According to such manufacture method, can be connecing the miniaturization of fully guaranteeing excess fiber length in device and realizing connector.
(3)
In addition, in recent years, along with the miniaturization of equipment and the increase of transinformation, optical fiber need to be contained in small-sized connector.On the other hand, in order to suppress the damage of optical fiber, optically-coupled portion in the time that cable is applied to tension force, need in connector, fully guarantee excess fiber length.But in the case of the signal wire of transmission of electric signals is connected in through hole mode with the substrate in connector, if carried out the edge contact of the optical fiber of remaining long process and the scolder being connected in through hole mode in connector, there is the problem that makes optical fiber damage.So the object of the 3rd invention is, fully guarantees excess fiber length in connector, the edge damage of the scolder that inhibition optical fiber is connected in through hole mode.
Be a kind of cable of Belt connector for the 3rd main invention that realizes above-mentioned purpose, it possesses: cable, and it has optical fiber and signal wire; And connector, it holds substrate, aforesaid substrate possesses the through hole for the end of above-mentioned signal wire is connected in through hole mode, the cable of above-mentioned Belt connector is characterised in that, when being fore-and-aft direction from the direction setting of the extended above-mentioned cable of above-mentioned connector, be formed with in the inside of above-mentioned connector change above-mentioned optical fiber above-mentioned fore-and-aft direction towards so that above-mentioned fibre-optical bending is the bend of U font, and above-mentioned crooked position is in being connected in through hole mode on the clad of above-mentioned signal wire of aforesaid substrate.If the cable of such Belt connector can fully be guaranteed excess fiber length in connector, and suppress the edge damage of the scolder that connected in through hole mode of optical fiber.
Preferably observe from above-mentioned connector side above-mentioned cable-side be, opposition side is while being front, aforesaid substrate possesses and is positioned at the backside via of above-mentioned cable-side and is formed at the front side through hole near front side than above-mentioned backside via, and the above-mentioned end of above-mentioned signal wire is inserted into the direction of above-mentioned backside via, is inserted into the opposite direction of above-mentioned front side through hole with the above-mentioned end of above-mentioned signal wire.Thus, can make signal wire be scattered in the both sides of substrate.
Preferred above-mentioned crooked position is in being connected in through hole mode on the clad of above-mentioned signal wire of above-mentioned backside via.Although need to make to be connected in through hole mode the signal wire bending of front side through hole, the signal wire that is connected in backside via in through hole mode can be not bending, so signal wire and bend can be connected up compactly.
Preferably be provided with and the photoelectric conversion part of the optical coupling of end face of above-mentioned optical fiber at the submounts different from aforesaid substrate, aforesaid substrate and above-mentioned submounts are electrically connected and are contained in above-mentioned connector.Thus, become the formation of easily carrying out the wiring of optical fiber.
Preferred above-mentioned optical fiber is routed to and is clipped between aforesaid substrate and above-mentioned submounts.Thus, can the movement of limit fibre in connector.
The preferably both sides of the above-mentioned bend on the clad that is positioned at above-mentioned signal wire, above-mentioned optical fiber is routed to and is clipped between aforesaid substrate and above-mentioned submounts.Like this, effective especially in the time that bend is easily subject to the formation towards the power of substrate.
Be routed at above-mentioned optical fiber: from above-mentioned connector side observe above-mentioned cable-side be set as, opposition side is made as when front, in the inside of above-mentioned connector, at least be formed with three above-mentioned fore-and-aft directions that change above-mentioned optical fiber towards so that above-mentioned fibre-optical bending becomes the bend of U font, and two bends of front side lay respectively at opposition side across aforesaid substrate.Thus, can be difficult to optical fiber mobile mode in connector inside and carry out remaining long process, and suppress the damage of optically-coupled portion.
Preferably in the inside of above-mentioned connector, be formed with another bend that is front side bend than above-mentioned bend near the end face side of above-mentioned optical fiber, and the end face of above-mentioned optical fiber is connected to: above-mentioned optical fiber is bending between the above-mentioned end face of above-mentioned front side bend and above-mentioned optical fiber, and above-mentioned optical fiber and above-mentioned fore-and-aft direction are acute angle.Thus, can realize the miniaturization of connector.
Specify a kind of manufacture method of cable of Belt connector, the cable of above-mentioned Belt connector possesses: cable, and it has optical fiber and signal wire; And connector, it holds substrate, and aforesaid substrate possesses the through hole for the end of above-mentioned signal wire is connected in through hole mode, and the manufacture method of the cable of above-mentioned Belt connector is characterised in that to have: the operation of preparing above-mentioned cable; The above-mentioned end of above-mentioned signal wire is connected in to the operation of the above-mentioned through hole of aforesaid substrate in through hole mode; And the described optical fiber that connects up, to make by the direction setting from the extended above-mentioned cable of above-mentioned connector during as fore-and-aft direction, form change above-mentioned optical fiber above-mentioned fore-and-aft direction towards so that above-mentioned fibre-optical bending becomes the bend of U font, and above-mentioned bend is configured in through hole mode and is connected in the operation on the clad of above-mentioned signal wire of aforesaid substrate.
According to such manufacture method, can manufacture the cable of the Belt connector of the very difficult damage of optical fiber.
===entirety formation===
Fig. 1 is the overall perspective view of the cable 1 of the Belt connector of present embodiment.Fig. 2 is vertical view and the side view of the cable 1 of the Belt connector of present embodiment.
The cable 1 of Belt connector is made up of composite cable 2 and two connectors being arranged at the two ends of composite cable 2.The cable 1 of the Belt connector of present embodiment is formed as being applicable to the formation of Camera Link interface, one side's connector becomes camera side-connector 10 (transmitter side connector), and the opposing party's connector becomes capture card side-connector 110 (receiver side connector).Camera side-connector 10 and capture card side-connector 110 have respectively 26 pin connector terminals.
According to a kind of Base Configuration as Camera Link standard, utilize the differential signal line being formed by wire rope to carry out signal transmission (vision signal, control signal) between camera side-connector 10 and capture card side-connector 110.But due to differential signal line restriction in the time transmitting to vision signal, so specified that transmission range is 10m to the maximum in Camera Link standard.On the other hand, in the present embodiment, utilize optical fiber should use the vision signal of multiple differential signal line transmission to transmit with time division multiplexing mode.Thus, can make the transmission range of the cable 1 of the Belt connector of present embodiment become 30m left and right.
Fig. 3 is the cut-open view of the composite cable 2 that uses of present embodiment.
Composite cable 2 possesses an optical fiber 3, seven differential signal lines 4 and two power leads 6.Optical fiber 3 is for transmitting optical signal.In the following description, also by optical fiber wire, optical fibre core and optical fiber cord etc. referred to as " optical fiber ".Differential signal line 4 is by forming taking the wire rope of 5 as one groups of two signal wires.Therefore, composite cable 2 possesses 14 signal wires 5.The main transmission of control signals of these differential signal lines 4, the low-frequency signal of transmission compared with the situation of transmission video signal.Two power leads 6 are made up of the wire rope thicker than signal wire 5, and the current potential of a side power lead 6 is 12V, and the current potential of the opposing party's power lead 6 is earthing potential (GND).
Fig. 4 is the functional block diagram of the cable 1 of the Belt connector of present embodiment.
Camera side-connector 10 possesses illuminating part 41, drive division 42, LVDS serializer 21 and photograph pusher side MCU22.
Illuminating part 41 is LD (Laser Diode: laser diode).In the present embodiment, adopted the VCSEL (Vertical Cavity Surface Emitting Laser: vertical cavity surface emitting laser) of the ejaculation light vertical with substrate as illuminating part 41.The current signal that illuminating part 41 is used as the bias current exported from drive division 42 and modulating current sum drives, and light signal is exported to optical fiber 3.
LVDS serializer 21 to four vision signals (X0～X3) and for vision signal clock signal (XCLK) timesharing ground multiplexing, and convert them to serial signal.The light signal corresponding with this serial signal is transmitted via optical fiber 3.
Photograph pusher side MCU22 for example carries out: (1) obtains the temperature data of the peripheral temperature that represents illuminating part 41 and exports big or small monitoring information that is the bias current data of the bias current of illuminating part 41 to; (2) temperature data and bias current data are sent to capture card side MCU122 via differential signal line 4; (3) obtain the setting data of bias current and the setting data of modulating current of the intensity of the light signal for controlling illuminating part 41 from capture card side MCU122 via differential signal line 4; (4) setting data of the setting data based on bias current and modulating current is set bias current and the modulating current of illuminating part 41; (5) obtain the completed LOCK signal of regeneration of the receive clock of the LVDS deserializer 121 of notice capture card side-connector 110 from capture card side MCU122 via differential signal line 4; And LOCK signal is exported to LVDS serializer 21 etc. by (6).
Capture card side-connector 110 possesses light accepting part 141, current/voltage converter section 142, LVDS deserializer 121 and capture card side MCU122.
Light accepting part 141 is PD (Photo Diode: photodiode).In the present embodiment, adopt gallium arsenide PIN photodiode (PIN-PD) as light accepting part 141.
The voltage signal corresponding with the electric current of supplying with from light accepting part 141 exported to LVDS deserializer 121 by current/voltage converter section 142.In addition, the monitoring voltage corresponding with the electric current of supplying with from light accepting part 141 exported to capture card side MCU122 by current/voltage converter section 142.
The voltage signal (serial signal) of LVDS deserializer 121 based on inputting from current/voltage converter section 142 generates four vision signals (X0～X3) and clock signal (XCLK) for vision signal, and above-mentioned signal is exported to not shown capture card.
Capture card side MCU122 for example carries out: (1) surveillance and monitoring voltage detects the state (normal, abnormal) of illuminating part 41; (2) obtain LOCK signal from LVDS deserializer 121, and via differential signal line 4, LOCK signal is sent to photograph pusher side MCU22; (3) obtain temperature data and bias current data via differential signal line 4 from photograph pusher side MCU22; And (4) generate the setting data of bias current and the setting data of modulating current based on temperature data and bias current data, and via differential signal line 4, above-mentioned data are sent to photograph pusher side MCU22 etc.
In addition, in order to make camera side-connector 10 and capture card side-connector 110 realize the function shown in Fig. 4, need to connect optical fiber 3 and these both sides of wire rope (differential signal line 4, power lead 6) at the substrate of connector inside.In the present embodiment, in order easily to carry out the connection operation separately of optical fiber 3 and wire rope, except being connected with the mother substrate of wire rope, also prepared the submounts for connecting optical fiber 3.And, the submounts connecting after optical fiber 3 is carried to (connection) mother substrate after connection metal cable.
In addition, on the submounts of camera side-connector 10, as photoelectric conversion part, illuminating part 41 is installed.In addition, on the submounts of capture card side-connector 110, as photoelectric conversion part, light portion 141 is installed.
The camera side-connector 10===of===
< forms >
Fig. 5 is the exploded perspective view of camera side-connector 10.Camera side-connector 10 possesses housing 11 and terminal part 12.
Housing 11 is for covering the terminal part 12 as electronic unit.Be formed with for composite cable 2 is imported to inner introducing port at housing 11.Keep near the riveted joint parts 8 lead division 7 of composite cable 2 at the introducing port of housing 11.Housing 11 has box 11A and cover 11B.After terminal part 12 is contained in to box 11A, cover the accommodation section of box 11A to cover 11B, fix both with screw.
Terminal part 12 possesses mother substrate 20, submounts 40 and portion of terminal 52.Mother substrate 20 and submounts 40 are printed circuit board (PCB)s, realize respectively the function shown in Fig. 3.The formation of aftermentioned mother substrate 20 and submounts 40.In a distolateral portion of terminal 52 that is connected with of mother substrate 20.Be provided with 26 pin connector terminals in portion of terminal 52.At another distolateral composite cable 2 that disposes of mother substrate 20.
In the explanation of following camera side-connector 10, define as shown in Figure front and back, upper and lower, left and right.That is, direction setting when composite cable 2 is extended as the crow flies from camera side-connector 10 is " fore-and-aft direction ", from camera side-connector 10 sides observe composite cable 2 sides be " ", opposition side is " front ".In addition, along the normal direction definition " above-below direction " of mother substrate 20, from mother substrate 20 sides observe submounts 40 sides (having the side as the illuminating part 41 of photoelectric conversion part) for " ", opposition side is D score (upper and lower in the drawings position relationship is contrary).In addition, the direction vertical with fore-and-aft direction and above-below direction is made as to " left and right directions ", as scheming, defines " right side " and " left side " (right-hand side when observing from front side be " left side " for " right side ", left-hand side) under the state that makes upper and lower location matches.
The formation > of < mother substrate 20
Fig. 6 is the stereographic map of mother substrate 20.
There are the row (through hole row) of three row along left and right directions through hole side by side at the rear side (side of composite cable 2) of mother substrate 20.The through hole row of the rear side in three row through holes row are called to " backside via row 31A ", will be called " front side through hole row 32A " near two through holes row of front side than backside via row 31A.
Backside via row 31A is made up of six through holes.Sometimes these six through holes are called to " backside via 31 ".Front side through hole row 32A is made up of four through holes respectively.Sometimes the through hole of front side through hole row 32A is called " front side through hole 32 ".
Be provided with altogether 14 through holes (six backside via 31 and eight front side through hole 32) at the rear side of mother substrate 20.These through holes are through holes of the signal wire 5 for welding the differential signal line 4 that forms composite cable 2.
Be formed with recess 24 at the right hand edge of mother substrate 20.If mother substrate 20 is contained in to housing 11, becomes between the edge of left and right of mother substrate 20 and the inner face of housing 11 state almost very close to each other, but be formed with gap between recess 24 and the inner face of housing 11.By optical fiber 3 is routed to this gap, can guarantee in the both sides up and down of mother substrate 20 the remaining length (wiring of aftermentioned optical fiber 3) of optical fiber 3.
On the right side of mother substrate 20, on fore-and-aft direction, be formed with side by side two through holes 33 that two row's pins are used.These two through holes form in the mode of leaving specified length from the right hand edge of mother substrate 20, in the time that mother substrate 20 is contained in to the box 11A of housing 11, optical fiber 3 can be routed between two row's pins 61 and the inner face of housing 11.
In the left side of mother substrate 20, on fore-and-aft direction, be formed with side by side ten through holes 34 that ten row's pins are used.These ten through holes form in the mode of leaving specified length from the left hand edge of mother substrate 20, in the time that mother substrate 20 is contained in to the box 11A of housing 11, optical fiber 3 can be routed between ten row's pins 62 (not shown) and the inner face of housing 11.
Four through holes 35 that are formed with at mother substrate 20 that four row's pins use and two are for welding the through hole 36 of power lead 6 of composite cable 2.Power lead is through holes of the most close connecting portion 25 for splicing ear portion 52 with through hole 36.This is in order to reduce the power-supply wiring pattern on mother substrate 20 as far as possible.By reducing power-supply wiring pattern, can reduce the position in the gap of consideration and signal pattern, thereby realize the miniaturization of substrate.
The formation > of < submounts 40
Fig. 7 is the stereographic map of the periphery of the submounts 40 observed from oblique upper.Mainly be equipped with optics (illuminating part 41 and drive division 42 thereof (not shown in Fig. 7)) at submounts 40.And, be equipped on the optical coupling of end face of illuminating part 41 with the optical fiber 3 of submounts 40.
Submounts 40 is equipped on the upside of mother substrate 20 via two row's pins 61, ten row's pins 62 and four row's pins 63.Therefore, be also formed with two rows through hole for pin at submounts 40, ten row's pin through holes and four are arranged pin through holes.
On submounts 40, be formed with recess 44.Recess 44 is that the clad of the heart yearn in order to avoid optical fiber 3 in the time making the optical coupling of the end face of optical fiber 3 and illuminating part 41 and submounts 40 are interfered and the grooving that forms.The width of recess 44 is set as wider than the external diameter 900 μ m of optical fiber 3 (comprising the clad of heart yearn).Thus, the length L from the end face of optical fiber 3 to the clad of heart yearn can be shortened, the damage of optical fiber 3 can be suppressed.In addition, can make the part of clad for optical fiber 3 between recess 44, can between submounts 40 and the clad of optical fiber 3, engage fixing (aftermentioned).
Recess 44 is formed obliquely with respect to fore-and-aft direction and left and right directions.In other words, the incision direction of recess 44 becomes the relation of 90 ° of 0 ° of < θ < with respect to fore-and-aft direction.Preferably the incision direction of recess 44 becomes the relation of 60 ° of 30 ° of < θ < with respect to fore-and-aft direction.Here, the incision direction of recess 44 tilts 45 ° with respect to fore-and-aft direction.
Thus, the peristome of recess 44 is formed as towards forward right side.Its result, the peristome of recess 44 in the time being contained in housing 11 towards the inner face (inner face on the right side of box 11A) on the right side of housing 11.By recess 44 is formed obliquely, optical fiber 3 is connected with submounts 40 in the mode that is acute angle with respect to fore-and-aft direction.
Illuminating part 41 is installed on the extended line of recess 44.Illuminating part 41 and the optical coupling of end face that is directed to the optical fiber 3 on submounts 40 along recess 44.
Fig. 8 A is the key diagram that makes the optically-coupled portion 43 of optical coupling between illuminating part 41 and optical fiber 3.The optical axis of optical fiber 3 and submounts 40 almost parallels, the optical axis of illuminating part 41 is substantially vertical with the face of submounts 40, and therefore illuminating part 41 generally perpendicularly configures with optical fiber 3 optical axis each other.In addition, in TOHKEMY 2010-237642 communique, International Publication communique WO2011/83812, also recorded the structure etc. of optically-coupled portion 43.
Optically-coupled portion 43 forms by being transparent resin for the light being transmitted.But the light path of the transmission light in resin is shorter, therefore there is the transparency to a certain degree.Optically-coupled portion 43 covers whole of end face 3J of optical fiber 3, is attached to the top of optical fiber 3 always.But optically-coupled portion 43 is as long as cover the entire profile of the heart yearn of optical fiber 3, the end face 3J that covers by halves optical fiber 3 is also harmless.Similarly, optically-coupled portion 43, as long as cover the light-emitting area 41A of illuminating part 41, covers illuminating part 41 also harmless by halves.
The outside 431 of optically-coupled portion 43 forms the interface of the transparent resin that forms optically-coupled portions 43 and outside gas (air, nitrogen etc.), and the light irradiating from illuminating part 41 431 occurs to reflect and is incident to optical fiber 3 outside.There is not the transparent resin that forms optically-coupled portion 43 in the position of the intersection point P reporting to the leadship after accomplishing a task at the optical axis of optical fiber 3 and the optical axis of illuminating part 41, the outside 431 of optically-coupled portion 43 is formed as the shape of depression in the end face 3J of optical fiber 3 and the light-emitting area 41A side of illuminating part 41.Particularly, in the outside 431 of optically-coupled portion 43, be formed as concave shape with the opposed position A of light-emitting area 41A of illuminating part 41 with the opposed position B of end face of optical fiber 3, and be also formed as concave shape between position A and position B.
There is not the transparent resin that forms optically-coupled portion 43 in the position of the intersection point P reporting to the leadship after accomplishing a task at the optical axis of illuminating part 41 and the optical axis of optical fiber 3, thereby the scope of light diffusion narrows, and can reduce the loss.In addition, by making the outside 431 of optically-coupled portion 43 become the shape of depression, thereby even if inaccurately control position and the angle of reflecting surface, also can realize reliable optically-coupled with lower making precision.In addition, the optically-coupled by the optically-coupled portion 43 being made up of single transparent resin between the end face 3J of optical fiber 3 and illuminating part 41, therefore can make with extremely low cost and simple operation.
Fig. 8 B is the key diagram of the bonding station of the end of optical fiber 3.Optical fiber 3 is at least engaged fixing in two positions of end.
The first junction surface is between the end face 3J of optical fiber 3 and illuminating part 41, to engage fixing part.The transparent resin that forms above-mentioned optically-coupled portion 43 plays a role as cement, thereby forms the first junction surface.Therefore, the transparent resin at the first junction surface adopts to have and forms the function of optically-coupled portion 43 and the material as the function of cement.As transparent resin, for example, can use ultraviolet curable resin, heat reactive resin etc.Particularly, enumerated acrylic resin, epoxy is resin, silicone-based resin etc.
The second junction surface is between the clad of optical fiber 3 and submounts 40, to engage fixing part.Suppress the movement of the end of optical fiber 3 by fixing this part, suppress the breakage of optically-coupled portion 43.In addition, optically-coupled portion 43 is the simple formation shown in Fig. 8 A, although therefore approach the surperficial state of submounts 40 for the optical axis of optical fiber 3, but owing to being formed with recess 44 on submounts 40, so (external diameter 900 μ m) interfere with submounts 40, can make the part of clad for optical fiber 3 between recess 44 can to avoid optical fiber 3.Thus, can realize the clad of optical fiber 3 in the second junction surface and engaging of submounts 40.In addition, as the cement at the second junction surface, for example, can use thermoplastic resin etc.Particularly, enumerated silicone-based resin, epoxy is resin etc.The cement at the second junction surface is different from the transparent resin at the first junction surface, does not have and makes the function of light transmission also harmless.
The wiring > of < optical fiber 3
Next, the wiring of optical fiber 3 is described.In addition, optical fiber 3 need to be set as bending radius larger than allowing bending radius, and is contained in narrow and small connector interior (in housing 11).
Fig. 9 is the stereographic map of the terminal part 12 of the camera side-connector 10 observed from oblique upper.Figure 10 is the figure shedding after the protective cover 51 of Fig. 9.Figure 11 be from oblique beneath to the stereographic map of terminal part 12 of camera side-connector 10.Figure 12 A is the side view of the terminal part 12 observed from left side.Figure 12 B is the side view of the terminal part 12 observed from right side.
Here successively each portion of the optical fiber in housing 11 3 is called to root 3A, downside line part 3B, the first front side bend 3C, transition part 3D, the first upside line part 3E, rear side bend 3F, the second upside line part 3G, the second front side bend 3H and terminal part 3I from the lead division 7 of composite cable 2 towards the end of optical fiber 3.Root 3A is from lead division 7 to the part downside line part 3B.Downside line part 3B is the part roughly being connected up in the lower-left of mother substrate 20 side linearity.The first front side bend 3C is to be the bend of U font at the front lower lateral bend of mother substrate 20.Transition part 3D is the part of getting in touch with from downside and the upside of mother substrate 20 at the recess 24 of mother substrate 20.The first upside line part 3E is the part between transition part 3D and rear side bend 3F, and is the part roughly being connected up in the upper right side of mother substrate 20 linearity.Rear side bend 3F is the bend that is bent into U font at the rear upside of mother substrate 20.The second upside line part 3G is the part between rear side bend 3F and the second front side bend 3H, is the part roughly being connected up in the upper left side of mother substrate 20 linearity.The second front side bend 3H is the bend that is bent into U font at the front upper side of mother substrate 20.Terminal part 3I is the part between the second front side bend 3H and optically-coupled portion 43.
Optical fiber 3 mode with two circles of probably reeling in housing 11 is carried out remaining long process.Therefore, optical fiber 3 mode towards changing three times with fore-and-aft direction in housing 11 is wound.Its result, the optical fiber 3 in housing 11 has three places to be bent to the bend (the first front side bend 3C, rear side bend 3F, the second front side bend 3H) of U font.Like this, because existence bends to the bend of U font, so even composite cable 2 is applied to tension force, tension force also can not be passed to the optically-coupled portion 43 of the end of optical fiber 3, can suppress the damage of optical fiber 3, optically-coupled portion 43.
The remaining long process of inserting optical fiber 3 and it being carried out to two circles from the rear side of housing 11, therefore two bends in three bends (the first front side bend 3C, the second front side bend 3H) are positioned at front side.If by the directly wiring overlappingly up and down of these two bends, can occupy upper and lower space.In addition, the optical fiber 3 that occupies upper and lower space becomes the state in housing 11 interior easy movements, becomes the reason that makes optically-coupled portion 43 fault such as damage.
So, in the present embodiment, make a side (the first front side bend 3C) in two bends of front side be positioned at the downside of mother substrate 20, make the opposing party (the second front side bend 3H) be positioned at the upside of mother substrate 20.Two bends that, optical fiber 3 are routed to front side are positioned at respectively the upper and lower of mother substrate 20.In other words two bends that, optical fiber 3 are routed to front side are positioned at opposition side across mother substrate 20.Thus, just can be not overlapping separately at the optical fiber up and down 3 of mother substrate 20.In addition, because optical fiber 3 is not overlapping, so easily keep optical fiber 3 motionless.
In addition, to carry out the remaining long process of optical fiber 3 and on mother substrate 20, be formed with recess 24 in order to realize in the both sides up and down of mother substrate 20.In recess 24 and between the inner face of housing 11, be formed with gap, therefore make the remaining long process contact of optical fiber 3 in the both sides up and down of substrate by the transition part 3D that makes optical fiber 3 by this gap.
The downside line part 3B of optical fiber 3 is routed at than ten row's pins 62 and power lead 6 (left side) (with reference to Figure 11, Figure 12 A) in the outer part.Thus, downside line part 3B left and right directions between housing 11 and ten row's pins 62 and power lead 6 can be restricted, thereby the movement in housing 11 is limited.
The first upside line part 3E of optical fiber 3 is routed at than two row's pins 61 (right side) (with reference to Fig. 7, Fig. 9, Figure 10, Figure 12 B) in the outer part.Thus, the first upside line part 3E is restricted at left and right directions between housing 11 and two row's pins 61.And the first upside line part 3E is routed between mother substrate 20 and submounts 40, thereby is also restricted at above-below direction.Therefore, the left and right directions of the first upside line part 3E and the movement of above-below direction are restricted.
The second upside line part 3G of optical fiber 3 is routed at than ten row's pins 62 (left side) (with reference to Figure 10) in the outer part.Thus, the second upside line part 3G left and right directions between housing 11 and ten row's pins 62 is restricted.And the second upside line part 3G is routed between mother substrate 20 and submounts 40, thereby is restricted at above-below direction.Therefore, the left and right directions of the second upside line part 3G and the movement of above-below direction are restricted.
The second upside line part 3G is compared with the first upside line part 3E, and the part being restricted at left and right directions and above-below direction is longer, therefore in housing 11, is difficult to mobile.In other words the second upside line part 3G that, is formed as the end of optical fiber 3 is difficult to mobile formation more than the first upside line part 3E.Thus, can suppress optically-coupled portion 43 because damaging in the interior movement of housing 11 end of optical fiber 3.
In addition, make rear side bend 3F be disposed at the upside (being equipped with a side of submounts 40) of mother substrate 20 to lengthen the second upside line part 3G (to lengthening confined part) of the end that approaches optical fiber 3 as far as possible in order to suppress the damage of optically-coupled portion 43.In addition, in order to realize, rear side bend 3F to be disposed to the upside of mother substrate 20 and transition part 3D (and recess 24 of mother substrate 20) is disposed at and the second opposition side, upside line part 3G left and right (right side).
Figure 13 is the key diagram of the terminal part 3I of the optical fiber 3 of present embodiment and comparative example.
In the case of making optical fiber 3 be bent into U font in narrow housing 11, the Origin And Destination of bend is all positioned at the position of the inner face that extremely approaches housing 11.On the other hand, for illuminating part 41 is installed on submounts 40, need to make optically-coupled portion 43 be positioned at the position away from the inner face of housing 11.Therefore, the terminal part 3I before the second front side bend 3H, need to be routed to the position away from the inner face of housing 11 from the position of the inner face that approaches housing 11.
In comparative example, optical fiber 3 is parallel with fore-and-aft direction in the direction of optically-coupled portion 43.Therefore,, in comparative example, the terminal part 3I before the second front side bend 3H, needs curved fiber 3 twice.Its result is, in comparative example, need to lengthen the length of the fore-and-aft direction of terminal part 3I, causes the fore-and-aft direction of camera side-connector 10 elongated.
On the other hand, in the present embodiment, optical fiber 3 in the direction of optically-coupled portion 43 with respect to fore-and-aft direction tilt angle theta (θ is acute angle (in the scope that 0 ° of < θ < is 90 °), is 45 ° here).Thus, in the present embodiment, the terminal part 3I before the second front side bend 3H, curved fiber 3 is once.Therefore, in the present embodiment, the length of the fore-and-aft direction of terminal part 3I can be shortened, the miniaturization of camera side-connector 10 can be realized.
In addition, for the 3I of portion curved fiber 3 endways once, so the incision direction of the recess 44 of submounts 40 is with respect to fore-and-aft direction tilt angle theta (being 45 ° here).Thus, the end face of optical fiber 3 and illuminating part 41 are acute angle in optically-coupled portion 43 with respect to fore-and-aft direction by optocoupler synthetic fibre-optical 3.
In addition, in comparative example, the optical fiber 3 endways 3I of portion is bent into S word shape, the optical fiber 3 bending direction difference of two positions of the 3I of portion (while observation from top as shown in Figure 13 endways, for the direction of the end face towards optical fiber 3, there are counterclockwise bending part and clockwise bending part).As described in this comparative example, if the different part adjacency of bending direction, optical fiber 3 easily moves.Therefore,, in comparative example, need to increase for the fulcrum of receiving optical fiber 3 stably (engage etc.) etc.
On the other hand, in the present embodiment, optical fiber 3 endways the 3I of portion only bending once, so there is not the situation of the different part adjacency of bending direction in the 3I of portion endways.Therefore,, compared with comparative example, the optical fiber 3 endways 3I of portion becomes the state that is difficult to movement.
And in the present embodiment, the optical fiber 3 endways bending direction of the 3I of portion is in the identical direction of the bending direction of the second front side bend 3H with optical fiber 3.As shown in Figure 13 from above while observing, for the direction of the end face towards optical fiber 3, no matter at the second front side bend 3H, still the 3I of portion is all bending counterclockwise endways for optical fiber 3.In other words, in the present embodiment, the the second upside line part 3G being restricted at above-below direction and left and right directions at optical fiber 3 with engage between the optically-coupled portion 43 (and second junction surface of Fig. 8 B) that is fixed with optical fiber 3, the bending direction of optical fiber 3 is identical direction.Thus, the the second upside line part 3G being restricted at above-below direction and left and right directions at optical fiber 3 with engage between the optically-coupled portion 43 (and second junction surface of Fig. 8 B) that is fixed with optical fiber 3, by utilizing the bending elastic force of optical fiber 3 to be formed as the extremely difficult mobile formation of optical fiber 3.
By as described above optical fiber 3 being connected up, even if do not use cable clamp etc. or do not increase bonding station, also can in narrow housing 11, stably hold long optical fibers 3.
The configuration > of < signal wire 5, power lead 6
Next, use Fig. 7, Fig. 9～Figure 11, Figure 12 A and Figure 12 B to describe the wiring of signal wire 5 and power lead 6.
14 signal wires 5 are connected in mother substrate 20 in through hole mode.Not adopting surface to install and adopting the reason connecting in through hole mode is to be also difficult to make signal wire 5 to depart from from mother substrate 20 even cable 2 is applied to tension force.
In 14 signal wires 5, six roots of sensation signal wire 5 is connected in six backside via 31 in through hole mode respectively.The end of this six roots of sensation signal wire 5 is inserted into backside via 31 welding from the top down.Remaining eight signal wires 5 are connected in eight front side through hole 32 in through hole mode respectively.The end of these eight signal wires 5 is inserted from bottom to top and welded.
In other words, at backside via 31 and front side through hole 32, the opposite direction of welding.Thus, can make 14 signal wires 5 be scattered in the both sides of mother substrate 20, the connection operation of signal wire 5 in narrow region becomes easy.In addition, by the both sides from mother substrate 20, signal wire 5 is connected in through hole mode, be also difficult to make signal wire 5 to depart from from mother substrate 20 even signal wire 5 is applied to tension force.
And the end of the six roots of sensation signal wire 5 being connected with backside via 31 is all inserted into backside via 31 from the top down.In other words, insert from the upside of the residing mother substrate 20 of rear side bend 3F of optical fiber 3 end of this six roots of sensation signal wire 5.Thus, the rear side bend 3F of optical fiber 3 not with edge contact from the outstanding scolder of backside via 31, can not damage.In addition, the rear side bend 3F of optical fiber 3 is routed at the upside of the clad of six roots of sensation signal wire 5, even contact with signal wire 5, the clad of signal wire 5 also becomes padded coaming, so be difficult to damage.
In addition, the first upside line part 3E of the both sides of the rear side bend 3F on the clad that is routed in six roots of sensation signal wire 5 and the second upside line part 3G are all connected up in the mode being clipped between mother substrate 20 and submounts 40.The first upside line part 3E and the second upside line part 3G are subject to power down from submounts 40, so the rear side bend 3F between the first upside line part 3E and the second upside line part 3G is easily subject to the effect of power down, suppose that the downside of rear side bend 3F has the edge of scolder, optical fiber 3 easily damages.Therefore, as in the embodiment described in, in the formation that the first upside line part 3E and the second upside line part 3G are all connected up in the mode being sandwiched between mother substrate 20 and submounts 40, rear side bend 3F is positioned on the clad of signal wire 5, and this is effective especially for the damage that prevents optical fiber 3.
The six roots of sensation signal wire 5 that is connected in backside via 31 does not connect in through hole mode agley.On the other hand, be connected in front side through hole 32 eight signal wire 5 slight curvatures connect (with reference to Figure 12 B) in through hole mode.Its reason is: (1) in the time that eight signal wires 5 are connected with front side through hole 32, need to cross the scolder outstanding from backside via 31 edge downside and connect up; (2), during from the welding of the downside visual examination backside via 31 of mother substrate 20, eight signal wires 5 that are connected with front side through hole 32 are staggered on left and right directions.
Rear side bend 3F is not disposed at and is connected on the clad of six roots of sensation signal wire 5 of backside via 31 in through hole mode agley.Thus, signal wire 5 and rear side bend 3F can be connected up compactly at above-below direction.Suppose to configure rear side bend 3F on the clad of eight signal wires 5 of side through hole 32 before being connected in through hole mode agley, signal wire 5 and rear side bend 3F not only can take up space but also rear side bend 3F can connect up away from mother substrate 20 at above-below direction, may produce the problem that optical fiber 3 easily moves or the bending radius of rear side bend 3F diminishes.
Two power leads 6 are being connected in through hole mode near the position of portion of terminal 52 than signal wire 5.This is in order to reduce the power-supply wiring pattern on mother substrate 20 as far as possible.In addition, two power leads 6 are crossed the downside of four row's pins 63 and connect up.But because the clad of power lead 6 is than the coated bed thickness of signal wire 5, thus be difficult to cause because of with the damage causing that contacts of stitch (pin), therefore allow such wiring.
The capture card side-connector 110===of===
Next, capture card side-connector 110 is described.Capture card side-connector 110 is the formation similar to camera side-connector 10, therefore with the corresponding inscape symbol of camera side-connector 10 is added 100 and symbol represent each inscape of capture card side-connector 110, and omit the explanation of its inscape.
< forms >
Figure 14 is the exploded perspective view of capture card side-connector 110.
In the explanation of following capture card side-connector 110, define as shown in Figure front and back, upper and lower, left and right.That is, direction when composite cable 2 extends as the crow flies from capture card side-connector 110 is " fore-and-aft direction ", from capture card side-connector 110 sides observe composite cable 2 sides be " ", opposition side is " front ".In addition, along the normal direction definition " above-below direction " of mother substrate 120, from mother substrate 120 sides observe submounts 140 sides (becoming a side at light accepting part 141 places of photoelectric conversion part) for " ", opposition side is D score.In addition, the direction vertical with fore-and-aft direction and above-below direction is made as to " left and right directions ", as scheming, defines " right side " and " left side " (right-hand side while observation from front side under the state of upper and lower position alignment is that " right side ", left-hand side are " left side ").
Figure 15 is the stereographic map of the periphery of the submounts 140 of the capture card side-connector 110 observed from oblique upper.In addition, illuminating part 41 is not installed and light accepting part 141 is installed at the submounts 140 of capture card side-connector 110.
There are two row along left and right directions through hole row side by side at the rear side (composite cable 2 sides) of mother substrate 120.Backside via is listed as by six backside via 131 and forms.Front side through hole is listed as by eight front side through hole 132 and forms.In addition, before capture card side-connector 110 has one to be listed as side through hole 132 it is former because the width of the left and right directions of the mother substrate 120 of capture card side-connector 110 is large according to camera side-connector 10, thereby eight front side through hole 132 can be arranged on left and right directions.
Be formed with recess 124 at the right hand edge of mother substrate 120.If mother substrate 120 is contained in to housing 111, between the left and right edges of mother substrate 120 and the inner face of housing 111, becomes state almost very close to each other, but be formed with gap between recess 124 and the inner face of housing 111.By optical fiber 3 is routed to this gap, can guarantee in the both sides up and down of mother substrate 120 the remaining length of optical fiber 3.
Be formed with recess 144 at submounts 140.Recess 144 is that the clad of the heart yearn for avoid optical fiber 3 in the time making the end face of optical fiber 3 and light accepting part 141 optically-coupled and submounts 140 are interfered and the grooving that forms.The width of recess 144 is set widelyr than the external diameter 900 μ m of optical fiber 3 (comprising the clad of heart yearn).Thus, can shorten from the end face of optical fiber 3 till the length L of the clad of heart yearn can suppress the damage of optical fiber 3.In addition, can make the part of clad for optical fiber 3 between recess 144, can be fixing by engaging between submounts 140 and the clad of optical fiber 3.
Recess 144 is formed obliquely with respect to fore-and-aft direction and left and right directions.Here, the incision direction of recess 144 tilts 45 ° with respect to fore-and-aft direction.Thus, optical fiber 3 is to be the mode of acute angle and to be connected to submounts 140 with fore-and-aft direction.
On the extended line of recess 144, be equipped with light accepting part 141.Light accepting part 141 and the optical coupling of end face that is directed to the optical fiber 3 on submounts 140 along recess 144.In addition, be the formation roughly the same with the optically-coupled portion 43 of aforesaid Fig. 8 A by the optically-coupled portion of optical coupling between light accepting part 141 and optical fiber 3 143.In addition, at least two place's bonding stations of the end of optical fiber 3 and aforesaid Fig. 8 B are roughly the same.
The wiring > of < optical fiber 3
Figure 16 is the stereographic map of the terminal part 112 of the capture card side-connector 110 observed from oblique upper.Figure 17 is the figure having shed after the protective cover 151 of Figure 16.Figure 18 be from oblique beneath to the stereographic map of terminal part 112 of capture card side-connector 110.
Optical fiber 3 is carried out to remaining long process at interior general coiling two circles of housing 111.Therefore, optical fiber 3 in housing 111, be wound into fore-and-aft direction towards change three times.Its result is that the optical fiber 3 in housing 111 has three bends (the first front side bend 3C, rear side bend 3F and the second front side bend 3H) that are bent to U font at least.Like this, because existence is bent into the bend of U font, so even composite cable 2 is applied to tension force, tension force also can not be passed to the optically-coupled portion 143 of the end of optical fiber 3, can suppress the damage of optical fiber 3, optically-coupled portion 143.
In the present embodiment, make a side (the first front side bend 3C) in two bends of front side be positioned at the downside of mother substrate 120, make the opposing party (the second front side bend 3H) be positioned at the upside of mother substrate 120.The upper and lower mode that, optical fiber 3 is arranged at respectively to mother substrate 120 with two bends of front side connects up.In other words two bends that, optical fiber 3 are routed to front side are positioned at opposition side across mother substrate 120.Thus, optical fiber 3 at mother substrate 120 up and down just can be not overlapping separately.In addition, because optical fiber 3 is not overlapping, so easily keep optical fiber 3 that it is not moved.
In addition, to carry out the remaining long process of optical fiber 3 and be formed with recess 124 at mother substrate 120 in order to realize in the both sides up and down of mother substrate 120.Between recess 124 and the inner face of housing 111, be formed with gap, therefore the transition part 3D by optical fiber 3 makes optical fiber 3 through this gap, thereby makes to get in touch with each other in the remaining long process of the both sides up and down of substrate.
The second upside line part 3G of optical fiber 3 is routed at than ten row's pins 162 (left side) (with reference to Figure 17) in the outer part.Thus, the second upside line part 3G is restricted at left and right directions between housing 111 and ten row's pins 162.And the second upside line part 3G is routed between mother substrate 120 and submounts 140, thereby is also restricted at above-below direction.Therefore, the second upside line part 3G is restricted in the movement of left and right directions and above-below direction.
The part that the second upside line part 3G is restricted at left and right directions and above-below direction is longer, therefore be difficult to mobile in housing 111.Thus, can suppress optically-coupled portion 143 because damaging in the interior movement of housing 111 end of optical fiber 3.
In addition, the upside (being equipped with a side of submounts 140) that makes rear side bend 3F be disposed at mother substrate 120 in order to suppress the damage of optically-coupled portion 143 lengthens the second upside line part 3G (to lengthening confined part) of the end that approaches optical fiber 3 in order to trying one's best.In addition, rear side bend 3F to be disposed to the upside of mother substrate 120 and transition part 3D (and recess 124 of mother substrate 120) is disposed at and the opposition side (right side) of the second upside line part 3G left and right directions in order to realize.
In the present embodiment, optical fiber 3 in the direction of optically-coupled portion 143 with respect to fore-and-aft direction tilt angle theta (θ is acute angle (in the scope that 0 ° of < θ < is 90 °), is 45 ° here).Thus, in the present embodiment, the terminal part 3I before the second front side bend 3H, only once gets final product (with reference to Figure 13) by optical fiber 3 bendings.Therefore, in the present embodiment, the length of the fore-and-aft direction of terminal part 3I can be shortened, the miniaturization of capture card side-connector 110 can be realized.
In addition, the 3I of portion is as long as by optical fiber 3 bendings once endways, and therefore the incision direction of the recess 144 of submounts 140 is with respect to fore-and-aft direction tilt angle theta (being 45 ° here).Thus, the end face of optical fiber 3 and light accepting part 141 are the mode optically-coupled of acute angle at optically-coupled portion 143 and fore-and-aft direction with optical fiber 3.
By the optical fiber 3 that connects up as described above, even if do not use cable clamp etc. or do not increase bonding station, also optical fiber 3 stably can be contained in narrow housing 11.
The wiring > of < signal wire 5, power lead 6
Next, use Figure 15～Figure 18 to describe the wiring of signal wire 5 and power lead 6.
14 signal wires 5 are connected in mother substrate 120 in through hole mode.Not adopting surface to install and adopting the reason connecting in through hole mode is to be also difficult to make signal wire 5 to depart from from mother substrate 120 even cable 2 is applied to tension force.
In 14 signal wires 5, six roots of sensation signal wire 5 is connected in six backside via 131 in through hole mode respectively.The end of this six roots of sensation signal wire 5 is inserted to backside via 131 welding from the top down.Remaining eight signal wires 5 are connected in eight front side through hole 132 in through hole mode respectively.The end of these eight signal wires 5 is inserted from bottom to top and welded.
In other words, at backside via 131 and front side through hole 132, the opposite direction of welding.Thus, can make 14 signal wires 5 be scattered in the both sides of mother substrate 120, the connection operation of signal wire 5 in narrow zone becomes easy.In addition, by the both sides from mother substrate 120, signal wire 5 is connected in through hole mode, be also difficult to make signal wire 5 to depart from from mother substrate 120 even signal wire 5 is applied to tension force.
And the end of the six roots of sensation signal wire 5 being connected with backside via 131 is all inserted backside via 131 from the top down.In other words, the end of this six roots of sensation signal wire 5 is inserted into from the upside of the mother substrate 120 at the rear side bend 3F place of optical fiber 3.Thus, thus the rear side bend 3F of optical fiber 3 with from the edge contact of the outstanding scolder of backside via 131 can not damage.In addition, the rear side bend 3F of optical fiber 3 is routed at the upside of the clad of six roots of sensation signal wire 5, even contact with signal wire 5, is difficult to damage therefore the clad of signal wire 5 also becomes padded coaming.
The six roots of sensation signal wire 5 being connected with backside via 131 does not connect (with reference to Figure 17) in through hole mode agley.On the other hand, connect (with reference to Figure 18) in through hole mode eight signal wire 5 slight curvatures that are connected with front side through hole 132.Its reason is identical with the wiring of the signal wire 5 of camera side-connector 10.
Rear side bend 3F is not disposed at and is connected on the clad of six roots of sensation signal wire 5 of backside via 131 in through hole mode agley.Thus, signal wire 5 and rear side bend 3F can be connected up compactly at above-below direction.
Two power leads 6 are being connected in through hole mode near the position of portion of terminal 152 than signal wire 5.This is in order to reduce the power-supply wiring pattern on mother substrate 120 as far as possible.
===manufacture method===
Figure 19 is the key diagram of the manufacture method of the cable 1 of Belt connector.
The pre-service > of < composite cable 2
First, prepare composite cable 2.Next, carry out the pre-service at the two ends of composite cable 2.
In this pre-service, remove the covering (sheath) of the end of composite cable 2, take out optical fiber 3, signal wire 5 and power lead 6.The mode of in the present embodiment, carrying out the length of remaining long process with two circles of can in connector, optical fiber 3 being reeled is taken out optical fiber 3 from composite cable 2.
In the lead division 7 of composite cable 2, coating cement around optical fiber 3, will engage (junction surface illustrates with black in the drawings) between optical fiber 3 and signal wire 5 and power lead 6.By this joint, even composite cable 2 is applied to tension force, also can suppress this tension force and conduct to front end from the lead division 7 of composite cable 2.
Lead division 7 at composite cable 2 is inserted with becket, this becket is riveted and form riveted joint parts 8.In addition, by riveted joint parts 8, even composite cable 2 is applied to tension force, also can suppress this tension force and conduct to front end from the lead division 7 of composite cable 2.
The connection > of < optical fiber 3
Next, the end of optical fiber 3 is installed on to submounts 40 (and submounts 140).Now, the UV film of end of first removing optical fiber 3 is to take out optical fiber wire, the end of cutting optical fiber wire, and optical fiber 3 is carried out to end face processing.Now from the end face of optical fiber 3 till the length of the clad of heart yearn is L (with reference to Fig. 7, Fig. 8 B, Figure 15).Next, the optical fiber 3 that has carried out end face processing is arranged to automatic core-adjusting machine with submounts 40, after the end face that is equipped on the photoelectric conversion part of submounts 40 (illuminating part 41, light accepting part 141) and optical fiber 3 is by automatic core-adjusting, form optically-coupled portion 43 (with reference to Fig. 8 A).After optical fiber 3 is installed on to submounts 40, protective cover 51 is installed on submounts 40 in order to protect optically-coupled portion 43.In addition, because optically-coupled portion 43 is easily damaged, so will engage fixing (with reference to Fig. 8 B) between the clad of the optical fiber between the recess at submounts 40 44 3 and submounts 40.
In the present embodiment, because submounts 40 separates with mother substrate 20, so can dwindle the substrate that is arranged at automatic core-adjusting machine.In addition, can make submounts 40 become the shape that does not depend on connector shape, size, adjust the robotization of core operation to become easy.
But, in the present embodiment, carry out the mode of remaining long process with two circles of can in connector, optical fiber 3 being reeled and take out optical fiber 3 from composite cable 2.But while connecting optical fiber 3, (for example, while processing the end face of optical fiber 3) may be failed.In such situation, in the mode that the length of remaining long process is reduced to a circle, optical fiber 3 is cut short.In this situation, as shown in the reference diagram of Figure 26, conventionally make three bends (the first front side bend 3C, rear side bend 3F, the second front side bend 3H) become one and carried out remaining long process.Thus, even if the connection failure of optical fiber 3 once, do not destroy composite cable 2 yet.
The connection > of < signal wire 5, power lead 6
Next, signal wire 5 and power lead 6 are welded on mother substrate 20 (and mother substrate 120).In addition, be connected with in advance portion of terminal 52 at mother substrate 20.
First, six roots of sensation signal wire 5 is connected in six backside via 31 in through hole mode respectively.The end of this six roots of sensation signal wire 5 is inserted to backside via 31 welding from the top down.Remaining eight signal wires 5 are connected in eight front side through hole 32 in through hole mode respectively.The end of these eight signal wires 5 is inserted from bottom to top and welded.In addition, two power leads 6 are also connected in through hole mode with mother substrate 20.
In the present embodiment, because mother substrate 20 separates with submounts 40, so in the time of welding signal line 5, power lead 6, optical fiber is not damaged by flatiron, optically-coupled portion 43 is because dispersing of solder flux etc. is not contaminated.
In addition, in the present embodiment, at backside via 31 and front side through hole 32, the opposite direction of welding, thereby the weld job of signal wire 5 becomes easily, and signal wire 5 is very difficult departs from from mother substrate 20.
In addition, due to eight signal wire 5 slight curvatures that are connected with front side through hole 32 connect, so can make eight welding that visual examination backside via 31 is staggered to come in signal wire 5 left and right that are connected with front side through hole 32.
< mother substrate and submounts be connected (wiring of optical fiber 3) >
Next, connect mother substrate 20 and submounts 40 (being also connected mother substrate 120 and submounts 140).Now, also carry out the wiring of optical fiber 3.
First, operator, as shown in Figure 11 (or Figure 18), is routed near the optical fiber of of the lead division of composite cable 273 at the downside of mother substrate 20 outside (left side) of ten row's pins 62, thereby forms root 3A.Next, operator connects up along ten row's pins 62 optical fiber 3 in the outside of ten row's pins 62 on fore-and-aft direction, thereby forms downside line part 3B.Next, operator by change optical fiber 3 fore-and-aft direction towards the front downside that the bend that is bent into U font is routed to mother substrate 20, thereby formation the first front side bend 3C.Then, operator connects up optical fiber 3 at the recess 24 of mother substrate 20 from downside to upside, thereby forms transition part 3D.
Next, operator as shown in Fig. 9 (or Figure 16) the upside of mother substrate 20 and be outside (right side) at two row's pins 61 along fore-and-aft direction wiring optical fiber 3, thereby form the first upside line part 3E.Next, operator by change optical fiber 3 fore-and-aft direction towards the rear upside that the bend that bends to U font is routed to mother substrate 20, thereby formation rear side bend 3F.In addition, rear side bend 3F is disposed on the clad of the six roots of sensation signal wire 5 being connected with backside via 31.Next, operator connects up along ten row's pins 62 optical fiber 3 in the outside of ten row's pins 62 on fore-and-aft direction, thereby forms the second upside line part 3G.Next, operator by change optical fiber 3 fore-and-aft direction towards the front upper side that the bend that bends to U font is routed to mother substrate 20, thereby formation the second front side bend 3H.Next, operator once forms terminal part 3I at the front end of the second front side bend 3H by optical fiber 3 bendings, and via two row's pins 61, ten row's pins 62 and four row's pins 63, submounts 40 is equipped on to mother substrate 20.In the time that submounts 40 is equipped on to mother substrate 20, the second upside line part 3G is sandwiched between mother substrate 20 and submounts 40.In addition, in the situation that being camera side-connector 10, the first upside line part 3E is also sandwiched between mother substrate 20 and submounts 40.Be sandwiched between mother substrate 20 and submounts 40 movement of above-below direction that can limit fibre 3 by optical fiber 3.
In the present embodiment, because mother substrate 20 separates with submounts 40, so the optical fiber that easily connects up as described above.
In addition, in the situation that being camera side-connector 10, because the first upside line part 3E and the second upside line part 3G are all connected up in the mode being clipped between mother substrate 20 and submounts 40, so rear side bend 3F is easily subject to the effect of downward power in the time that submounts 40 is equipped on to mother substrate 20.But rear side bend 3F is configured on the clad of signal wire 5, the clad of signal wire 5 becomes buffer unit, and the damage of optical fiber 3 is suppressed.
After submounts 40 is equipped on to mother substrate 20, operator is electrically connected mother substrate 20 and submounts 40 by the each stitch that welds two row's pins 61, ten row's pins 62 and four row's pins 63, completes terminal part 12.Now, at submounts 40, protective cover 51 is installed, therefore optical fiber is not damaged by flatiron, and optically-coupled portion 43 is because dispersing of solder flux etc. is not contaminated.
After terminal part 12 completes, terminal part 12 is contained in box 11A by operator, utilizes cover 11B to cover the accommodation section of box 11A, and both screw threads are fixed.Thus, the cable 1 of Belt connector completes.
===variation===
< the first variation: the example > that changes the coiling number of turns of optical fiber 3
In the above-described embodiment, carry out remaining long process at connector interior focusing fibre 3 in the mode of two circles of roughly reeling, in connector, have three bends.But the remaining long process of the optical fiber 3 in connector is not limited thereto.Can also carry out remaining long process in the mode of reeling more than three times at connector interior focusing fibre 3.
Figure 20 be from oblique beneath to the stereographic map of terminal part 12 of camera side-connector 10 of the first variation.In addition, the formation of the upside of mother substrate 20 and wiring are identical with above-mentioned embodiment, so the diagram of omission.
In the first variation, optical fiber 3 is carried out to remaining long process in the mode of three circles of roughly reeling in housing 11.Therefore, optical fiber 3 in housing 11, be wound into change five fore-and-aft directions towards.Its result, the optical fiber 3 in housing 11 has five bends that bend to U font.Three crooked positions in five bends are in front side, and two crooked positions are in rear side.At a crooked position of three bends that is arranged in front side, in the upside (not shown at Figure 20) of mother substrate 20, two crooked positions are in the downside of mother substrate 20.In addition, be arranged in the upside (not shown at Figure 20) of mother substrate 20 of two bends who is arranged in rear side, another is positioned at the downside of mother substrate 20.
In the first variation, optical fiber 3 is routed to three bends and is laid respectively at the upper and lower of mother substrate 20 in front side.Therefore, the first variation and three bends are only configured in compared with the situation of a side of mother substrate 20, and optical fiber 3 does not account for upper and lower space, and optical fiber 3 is difficult to mobile in housing 11.
In addition, even in the first variation, also for example, as long as optical fiber 3 is acute angle theta (45 °) at direction and the fore-and-aft direction of optically-coupled portion 43, at the terminal part 3I (not shown in Figure 20) of the second front side bend 3H (not shown in Figure 20) front end, by optical fiber 3, only bending is once, therefore can shorten the length of the fore-and-aft direction of terminal part 3I, just can realize the miniaturization (with reference to Figure 13) of connector.
In addition, even in the first variation, also as long as the rear side bend 3F (not shown in Figure 20) of the optical fiber 3 of the upside of mother substrate 20 is routed at the upside of the clad of the six roots of sensation signal wire 5 being connected with backside via 31, just can make optical fiber 3 be difficult to damage.
In addition, as described in the first variation, optical fiber 3 is carried out, remaining long process, preferably only configuring a bend at the front upper side of mother substrate 20 in the mode more than interior coiling three circles of housing 11.Thus, at the upside of the residing mother substrate 20 of optically-coupled portion 43, optical fiber 3 is not overlapping, and optical fiber 3 is difficult to mobile in housing 11, can suppress the damage of optically-coupled portion 43.In this situation, bend is overlapping up and down at the downside of mother substrate 20, and therefore optical fiber 3 becomes than being easier to mobile state, therefore but on less this situation that allows of the impact of optically-coupled portion 43.
< the second variation: the example > that does not separate mother substrate and submounts
In the above-described embodiment, because mother substrate separates with submounts, so connection operation, the wiring operation of optical fiber 3, signal wire 5 and power lead 6 become easy.But permit as long as connect the time of operation, wiring operation, also can not separate mother substrate and submounts.In addition, in the situation that not separating mother substrate and submounts, photoelectric conversion part (illuminating part 41 or light accepting part 141) is equipped on mother substrate 20 by being directly installed in mother substrate 20.
Figure 21 is the stereographic map of the terminal part 12 of the camera side-connector 10 of the second variation of observing from oblique upper.As shown in the figure, in the second variation, be installed on the upside of mother substrate 20 as the illuminating part 41 of photoelectric conversion part, optically-coupled portion 43 is positioned at the upside of mother substrate 20.
In the second such variation, the optical fiber 3 upper and lower mode that is positioned at respectively mother substrate 20 with two bends of front side that connects up is also connected up.Thus, even in the second variation, also overlapping separately up and down at mother substrate 20 not of optical fiber 3.
In addition, even in this second variation, optical fiber 3 is acute angle theta (being 45 ° here) at direction and the fore-and-aft direction of optically-coupled portion 43.Thus, even in the second variation, at the terminal part 3I of the second front side bend 3H front end, also make optical fiber 3 only bending once, therefore can shorten the length of the fore-and-aft direction of terminal part 3I, can realize the miniaturization of connector.
In addition, even in this second variation, the rear side bend 3F of optical fiber 3 is routed in the upside of the clad of the six roots of sensation signal wire 5 being connected with backside via 31.Thus, optical fiber 3 is difficult to damage.
In addition, in order to realize the second variation, need to be more than 450 μ m with respect to the surperficial lifting of mother substrate 20 by the light-emitting area of illuminating part 41 that is VCSEL.Therefore, between mother substrate 20 and illuminating part 41, sandwiched time is sticked together substrate (submount) (aluminium nitride substrate for example, being metallized).
< the 3rd variation: mother substrate is without the example > of recess
In the above-described embodiment, be formed with recess at mother substrate, optical fiber 3 is connected up to upside from the downside of mother substrate at recess.But mother substrate can not have recess yet.
Figure 22 is the figure of the terminal part 112 of the capture card side-connector 110 of the 3rd variation observed from oblique upper.As shown in the figure, in the 3rd variation, do not form recess 124 at the right hand edge of mother substrate 120.In addition, in the 3rd variation, optical fiber 3, through the outside of the right hand edge of mother substrate 120, connects up from downside to upside.
In the 3rd variation, need between the inner face of housing 111 and the right hand edge of mother substrate 120, guarantee the gap of fibre diameter left and right.Therefore,, in the 3rd variation, if compared with above-mentioned embodiment, housing 111 can maximize.
Even in the 3rd such variation, two bends that optical fiber 3 is routed to front side are positioned at respectively the upper and lower of mother substrate 120.Thus, even in the 3rd variation, also overlapping separately up and down at mother substrate 120 not of optical fiber 3.
In addition, even in the 3rd such variation, optical fiber 3 is acute angle theta (being 45 ° here) at direction and the fore-and-aft direction of optically-coupled portion 143.Thus, even in the 3rd variation, the terminal part 3I of the second front side bend 3H front end also make optical fiber 3 only bending once, thereby can shorten the length of the fore-and-aft direction of terminal part 3I, can realize the miniaturization of connector.
In addition, even in the 3rd variation, the rear side bend 3F of optical fiber 3 is routed at the upside of the clad of the six roots of sensation signal wire 5 being connected with backside via 131.Thus, optical fiber 3 is difficult to damage.
< the 4th variation: submounts is without the example > of recess
In the above-described embodiment, be formed with recess at submounts.But submounts can not have recess.
Figure 23 is the stereographic map of the periphery of the submounts 40 of the camera side-connector 10 of the 4th variation observed from oblique upper.As shown in the figure, in the 4th variation, on submounts 40, do not form recess 44.
In the 4th variation, in the case of the optical axis of optical fiber 3 and the surperficial distance of submounts 40 shorter than the radius of optical fiber 3 (comprising the clad of heart yearn), cannot shorten from the end face of optical fiber 3 till the length L of the clad of heart yearn ', if therefore compare with above-mentioned embodiment, optical fiber 3 easily damages.In addition, in the 4th variation, if compare with above-mentioned embodiment, be difficult to the clad of optical fiber 3 to engage with submounts 40.
Even in the 4th such variation, two bends that optical fiber 3 is routed to front side are positioned at respectively the upper and lower of mother substrate 20.Thus, even in the 4th variation, what optical fiber 3 can be at mother substrate 20 yet is overlapping separately up and down.
In addition, even in the 4th such variation, optical fiber 3 is acute angle theta (being 45 ° here) at direction and the fore-and-aft direction of optically-coupled portion 43.Thus, in the 4th variation, in the terminal part 3I of the second front side bend 3H front end, also make optical fiber 3 only bending once, therefore can shorten the length of the fore-and-aft direction of terminal part 3I, can realize the miniaturization of connector.
In addition, in the 4th variation, the rear side bend 3F of optical fiber 3 is routed at the upside of the clad of the six roots of sensation signal wire 5 being connected with backside via 31.Thus, optical fiber 3 is difficult to damage.
< the 5th variation: the example > that optical fiber does not tilt in the direction of optically-coupled portion
At above-mentioned embodiment, optical fiber 3 tilts 45 ° with respect to fore-and-aft direction in the direction of optically-coupled portion.But optical fiber 3 also can be parallel with fore-and-aft direction in the direction of optically-coupled portion.
Optical fiber 3 is parallel with fore-and-aft direction in the direction of optically-coupled portion, in Figure 13, comparative example is illustrated, need to be by twice of optical fiber 3 bending.Its result is, the optical fiber 3 endways length of the fore-and-aft direction of the 3I of portion is elongated.
Even under these circumstances, if two bends that optical fiber 3 is routed to front side are positioned at respectively the upper and lower of mother substrate 20, optical fiber 3 is not overlapping yet.
In addition, even under these circumstances, if the rear side bend 3F of optical fiber 3 is routed at the upside of the clad of the six roots of sensation signal wire 5 being connected with backside via 31, optical fiber 3 is also difficult to damage.
< the 6th, seven variation: rear side bend is not positioned at the example > on the clad of signal wire
In the above-described embodiment, the rear side bend 3F of optical fiber 3 is routed at the upside of the clad of the six roots of sensation signal wire 5 that is connected in backside via.But the rear side bend 3F of optical fiber 3 also can not be positioned at the upside of the clad of signal wire 5.
Figure 24 is the stereographic map of the periphery of the submounts 40 of the camera side-connector 10 of the 6th variation observed from tilted direction.
In the 6th variation, rear side bend 3F is disposed at the upside of front side through hole 32.Front side through hole 32, because insert from bottom to top the end of signal wire 5, so it is outstanding to have scolder edge at the upside of front side through hole 32.If but the configuration of such rear side bend 3F is allowed to, two bends that also optical fiber 3 can be routed to front side in the 6th variation are positioned at respectively the upper and lower of mother substrate 20.In addition, if the configuration of such rear side bend 3F is allowed to, in the 6th variation, also can make optical fiber 3 is acute angle at direction and the fore-and-aft direction of optically-coupled portion 43.
Figure 25 is the stereographic map of the periphery of the submounts 40 of the camera side-connector 10 of the 7th variation observed from tilted direction.
In the 7th variation, backside via 31 is all identical with the direction of welding of front side through hole 32, cannot make 14 signal wires 5 be dispersed in the both sides of mother substrate 20.In addition, in the 7th variation, the end of the signal wire 5 being connected with backside via 31 is inserted into from bottom to top, therefore may be outstanding by the edge of scolder at the upside of backside via 31.But as long as such configuration is allowed to, two bends that also optical fiber 3 can be routed to front side in the 7th variation are positioned at respectively the upper and lower of mother substrate 20.In addition, as long as such configuration is allowed to, in the 7th variation, also can make optical fiber 3 is acute angle in the direction of optically-coupled portion 43 with respect to fore-and-aft direction.
< reference example: the example > that by sweep is not two
In the above-described embodiment, two bends that optical fiber are routed to front side are positioned at respectively the upper and lower of mother substrate.
Figure 26 is the stereographic map of the terminal part 12 of the camera side-connector 10 of the reference example observed from oblique upper.
In reference example, optical fiber 3 is carried out to remaining long process in the mode of the circle of roughly reeling in housing 11.Therefore, optical fiber 3 in housing 11, be wound into change a fore-and-aft direction towards.Its result is that the optical fiber 3 in housing 11 only has a bend that is bent to U font at front upper side.In other words,, in this reference example, do not form bend at the downside of mother substrate 20.
Even in such reference example, optical fiber 3 is also acute angle theta (being 45 ° here) at direction and the fore-and-aft direction of optically-coupled portion 43 (not shown in Figure 26).Thus, even in reference example, at the terminal part 3I of the second front side bend 3H front end only by optical fiber 3 bendings once, so can shorten the length of the fore-and-aft direction of terminal part 3I, can realize the miniaturization of connector.
===other===
Above-mentioned embodiment is for making the understandable embodiment of the present invention, instead of explains the present invention for limiting.Self-evident, the present invention can not depart from its purport ground example and change as described below, improves, and the present invention includes its equivalent.
< is about cable 1 > of Belt connector
The cable 1 of above-mentioned Belt connector is the formation that is applicable to Camera Link interface.But also can adopt to the cable of the Belt connector for other purposes the formation of above-mentioned embodiment.
< is about cable >
Above-mentioned composite cable 2 possesses signal wire 5, power lead 6, but is not limited to this.For example, can be also the cable that is provided with the Belt connector of connector in the end of optical cable that there is no signal wire 5, power lead 6.
In addition, above-mentioned composite cable 2 only possesses an optical fiber, but is not limited thereto.For example, composite cable also can possess multifiber.
Symbol description:
1 ... the cable of Belt connector; 2 ... composite cable; 3 ... optical fiber; 3A ... root; 3B ... downside line part; 3C ... the first front side bend; 3D ... transition part; 3E ... the first upside line part; 3F ... rear side bend; 3G ... the second upside line part; 3H ... the second front side bend; 3I ... terminal part; 3J ... end face; 4 ... differential signal line; 5 ... signal wire; 6 ... power lead; 7 ... lead division; 8 ... riveted joint parts; 10 ... camera side-connector; 11,111 ... housing; 11A, 111A ... box; 11B, 111B ... cover; 12,112 ... terminal part; 20,120 ... mother substrate; 21 ... LVDS serializer; 22 ... photograph pusher side MCU; 24,124 ... recess; 25 ... connecting portion; 31,131 ... backside via; 31A ... backside via row; 32,132 ... front side through hole; 32A ... front side through hole row; 33 ... two row's pin through holes; 34 ... ten row's pin through holes; 35 ... four row's pin through holes; 36 ... power lead through hole; 40,140 ... submounts; 41 ... illuminating part; 41A ... light-emitting area; 42 ... drive division; 43,143 ... optically-coupled portion; 44,144 ... recess; 51,151 ... protective cover; 52,152 ... portion of terminal; 61,161 ... two row's pins; 62,162 ... ten row's pins; 63,163 ... four row's pins; 110 ... capture card side-connector; 121 ... LVDS deserializer; 122 ... capture card side MCU; 141 ... light accepting part; 142 ... current/voltage converter section

Claims (12)

1. a cable for Belt connector, possesses:
Cable, it has optical fiber and signal wire; With
Connector, it holds substrate, and described substrate possesses the through hole for connect the end of described signal wire in through hole mode;
The cable of described Belt connector is characterised in that,
When being fore-and-aft direction from the direction setting of the extended described cable of described connector,
In the inside of described connector, be formed with change described optical fiber described fore-and-aft direction towards so that described fibre-optical bending becomes the bend of U font, and described crooked position is in being connected in through hole mode on the clad of described signal wire of described substrate.
2. the cable of Belt connector according to claim 1, is characterized in that,
Observe from described connector side described cable-side be, opposition side is while being front,
Described substrate possesses and is positioned at the backside via of described cable-side and is formed at the front side through hole near front side than described backside via,
The described end of described signal wire is inserted into the direction of described backside via and the described end of described signal wire and is inserted into the opposite direction of described front side through hole.
3. the cable of Belt connector according to claim 2, is characterized in that,
Described crooked position is in being connected in through hole mode on the clad of described signal wire of described backside via.
4. the cable of Belt connector according to claim 1, is characterized in that,
Be provided with and the photoelectric conversion part of the optical coupling of end face of described optical fiber at the submounts different from described substrate,
Described substrate is electrically connected with described submounts, and is housed inside described connector.
5. the cable of Belt connector according to claim 4, is characterized in that,
Described optical fiber is routed to and is clipped between described substrate and described submounts.
6. the cable of Belt connector according to claim 5, is characterized in that,
The both sides of the described bend on the clad that is positioned at described signal wire, described optical fiber is routed to and is clipped between described substrate and described submounts.
7. the cable of Belt connector according to claim 1, is characterized in that,
Will observe from described connector side described cable-side be set as, opposition side be set as before time,
In the inside of described connecting portion, described optical fiber is routed to: at least form three described fore-and-aft directions that change described optical fiber towards so that described fibre-optical bending becomes the bend of U font, and two bends of front side lay respectively at opposition side in the mode that clamps described substrate.
8. the cable of Belt connector according to claim 1, is characterized in that,
In the inside of described connector, be formed with another bend that is front side bend than described bend near end face one side of described optical fiber, and it is bending between the described end face of described front side bend and described optical fiber that the end face of described optical fiber is connected to described optical fiber, and described optical fiber and described fore-and-aft direction are acute angle.
9. the cable of Belt connector according to claim 8, is characterized in that,
In the inside of described connector, described optical fiber is to equidirectional bending.
10. the cable of Belt connector according to claim 1, is characterized in that,
Will observe from described connector side described cable-side be set as, opposition side be set as before time,
In the inside of described connector, described bend is formed at rear side, and the crooked position of described rear side is in being connected on the clad of described signal wire of described substrate in through hole mode by welding.
The cable of 11. Belt connectors according to claim 1, is characterized in that,
Described connector has the portion of terminal being electrically connected with described photoelectric conversion part.
The manufacture method of the cable of 12. 1 kinds of Belt connectors, the cable of this Belt connector possesses:
Cable, it has optical fiber and signal wire; With
Connector, it holds substrate, and described substrate possesses the through hole for connect the end of described signal wire in through hole mode,
The manufacture method of the cable of described Belt connector is characterised in that to have:
Prepare the operation of described cable;
The described end of described signal wire is connected in to the operation of the described through hole of described substrate in through hole mode; And
According to when being fore-and-aft direction from the direction setting of the extended described cable of described connector, form change described optical fiber described fore-and-aft direction towards so that described fibre-optical bending becomes the bend of U font, and described bend is configured in through hole mode be connected in the operation that the mode on the clad of described signal wire of described substrate connects up to described optical fiber.
CN201410240782.6A 2011-09-28 2012-05-23 The manufacture method of the cable of Belt connector and the cable of Belt connector Expired - Fee Related CN104035167B (en)

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US9335491B2 (en) 2016-05-10
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TW201319651A (en) 2013-05-16
WO2013046799A1 (en) 2013-04-04

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